ESGENA is focused on the promotion and the advancement of endoscopy and gastroenterology nursing. It has over 6000 nurse members in 38 membership countries working in gastroenterology and/or endoscopy.

WEO is composed of the National Digestive Endoscopy Societies (or of the Endoscopy Sections of the Gastroenterology Societies) of three Zones: European (ESGE), Pan-American (SIED) and Asian-Pacific (APSDE).